Pipenv fails to install boto3 on remote server (Heroku)
django-storages depends on boto3 version of 1.4.4 and above but pipenv installs 1.12.31 which was released on mar 28.So there might be cache mismatch between heroku and pypi.org. so u can downgrade boto3 by manually installing boto3 by using the following command
pipenv install "boto=1.4.4"
I have specified 1.4.4 as it is the minimum version required by django-storages.But u can install any version above 1.4.4.